package collection;

import java.util.*;

/**
 *
 */
public class SortInteger {
    public static void main(String[] args) {
        Random random = new Random();
        List<Integer> list = new ArrayList<>();
        for (int i=0;i<10;i++){
            list.add(random.nextInt(100));
        }
        System.out.println("list原始数据："+list);

        Collections.sort(list);
        System.out.println("list排序后数据："+list);

        Collections.sort(list);
        System.out.println("list排序后数据："+list);

        Collections.reverse(list);
        System.out.println("list反转后数据："+list);
        System.out.println("第1个元素为："+list.get(0));
    }
}
